The problems that Nowy mentioned are eliminated with the patched version of the game.
Are you jocking? I got C2 BfE 1.3 and there are sometimes these mentioned above shortly slow down problems.
It happend in late stage of the gameplay, when on battlefield operate lot of units.
I can live with this and it is not a major problem there, but why [HWK] Frederik can not play with mentioned nations?
Do you know any official patch to this game? I thought that there were not any patches except unofficial 1.4 which was only for Russian version.
Did you try change your's commanders and faction/nation profile in single player menu, which you want to play before you start BfE?
I thought that you tried C2 Battle for Europe 1.3 version and not C2 Napoleonic Wars 1.2 version.
This game should run on your computer. However 1 GB RAM and vid card: Nvidia Geforce 750 Lee could be problematic there.
Nevertheless even my old notebook with Win XP and ATI Radeon vid card works quite fine with this game, and normally it can run smoothly.
However it quickly is hot and needs cooling, but it can run even long and big games with c.a. 2.800 units per player which fought in few places at once.
I made some kind of tunning which can little bit help with some lags and normally I fight not so quickly acctions where I engaged only parts of troops which I got in my disposition.